Revise allocator_access implementation

test/allocator_deallocate_test.cpp

@@ -8,23 +8,22 @@ Distributed under the Boost Software License, Version 1.0.
 #include <boost/core/allocator_access.hpp>
 #include <boost/core/lightweight_test.hpp>
 
+template<class T>
 struct A {
-    typedef int* pointer;
-    typedef int size_type;
-
+    typedef T value_type;
+    typedef T* pointer;
+    typedef std::size_t size_type;
     A()
         : value() { }
-
-    void deallocate(pointer, size_type n) {
+    void deallocate(T*, std::size_t n) {
         value = n;
     }
-
-    size_type value;
+    std::size_t value;
 };
 
 int main()
 {
-    A a;
+    A<int> a;
     boost::allocator_deallocate(a, 0, 5);
     BOOST_TEST_EQ(a.value, 5);
     return boost::report_errors();